http://www.javassist.org/: Javassist (JAVA programming ASSISTant) makes Java bytecode manipulation simple. It is a class library for editing bytecodes in Java. (Shigeru Chiba, www.javassist.org) 
/*
 * Javassist, a Java-bytecode translator toolkit.
 * Copyright (C) 1999- Shigeru Chiba. All Rights Reserved.
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License.  Alternatively, the contents of this file may be used under
 * the terms of the GNU Lesser General Public License Version 2.1 or later,
 * or the Apache License Version 2.0.
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 */

package javassist.compiler;

import javassist.bytecode.Bytecode;
import javassist.compiler.ast.ASTList;


An interface to an object for implementing $proceed().

See Also:
  • setProceedHandler.setProceedHandler(ProceedHandler, String)
/**
 * An interface to an object for implementing $proceed().
 *
 * @see javassist.compiler.JvstCodeGen#setProceedHandler(ProceedHandler, String)
 */
public interface ProceedHandler {
    void doit(JvstCodeGen gen, Bytecode b, ASTList args) throws CompileError;
    void setReturnType(JvstTypeChecker c, ASTList args) throws CompileError;
}